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Eczema case file · opened by a parent

Every flare has a story. Find yours.

EczemaTrack turns two minutes of daily logging into a case file on your child’s skin — then looks back across days to surface the patterns same-day guessing can’t see.

Download on theApp Store

Free right now, pattern insights included · Private, no account · iOS 17.2+

EczemaTrack's Today screen: a skin severity slider, a bath toggle, the body-map summary, the weather and a prompt to log the day's details
exhibit — the 2-minute daily log
See how a case gets solved ↓
Case opened — 2:04 AM

Chapter 1 · The suspects

You’ve suspected everyone.

Every parent of a kid with eczema keeps the same mental corkboard.

A glass of milk and a bottle of milk on a kitchen counter

The milk

— blamed it for months — nothing lined up

A grey tabby cat asleep on a knitted blanket on the sofa

The cat

— poor Whiskers

A plain white bottle of laundry detergent beside a stack of folded baby clothes

The new detergent

— switched brands last month — or was it the softener?

A small fan and a glass of iced water on a sunny windowsill

The heat wave

— or was it the AC?

A patterned wool rug in a grandmother's living room

Grandma's carpet

— she swears it's clean

Guessing one suspect at a time is how whole months disappear.

Chapter 2 · The evidence

Two minutes a day. That’s the whole job.

Log quickly, capture context, and let the case build itself — designed so a busy parent can do it one-handed, even on the hard days.

Today screen: skin severity slider, bath toggle, body-map summary, weather, and a prompt to log the day's details
EXHIBIT A — the 2-minute daily log
Interactive body map with severity markers on different body regions
EXHIBIT B — the 15-zone body map
A day's context sections: food, products, medications, a pet interaction and a place visited
EXHIBIT C — food, products, pets, places
Color-coded calendar showing severity trends across the month
EXHIBIT D — the month at a glance
🍽️ Meals + allergen flags (dairy, soy, egg, wheat…)💊 Medication schedule, reminders & adherence🌤️ Weather, auto-stamped (or entered by hand)🛁 Baths, products & what got applied when

Chapter 3 · Solve a case

Step into Enzo’s room.

A month of logs, 8 flare days, and five suspects in plain sight.

Skip the room
A cartoon nursery: a baby stacking blocks on a play mat, a golden dog on a rug, a washing machine in the laundry nook, a fan on the dresser, a milk bottle on a shelf, and a window onto the backyard and the park.

Which one lines up with Enzo’s flares?

Hover over things in the room to see when they were logged. Click your pick.

Synthetic demo data — a made-up month, not a real child’s log.

Synthetic demo data — a made-up month, not a real child’s log.

Chapter 4 · The method

How we investigate — and why we’re careful.

Sealed records

The evidence never leaves the building.

  • On-device by design. Your tracking data is stored locally on your iPhone. We run no server and never receive it.
  • No accounts, no trackers. No third-party analytics, ad, or tracking SDKs. The app collects no data about you.
  • iOS encrypted. Protected by Apple’s iOS sandbox and device-level encryption.
  • App Store privacy label: “Data Not Collected.” Apple’s own summary of what the app sends — see the listing.
  • The one exception: optional weather sends your approximate location to Apple’s WeatherKit. Skip it and enter weather manually if you prefer.
Unverified lead

We’d rather miss a lead than accuse the wrong thing.

  • Windows that fit the factor. Detergents, soaps and creams are checked same-day and the next morning; baths the next morning; foods you’ve flagged as common allergens same-day and up to two days later. Everything else is checked same-day — we don’t claim a window we haven’t tested.
  • Double-checked against chance. Eczema has natural ups and downs that can fake a pattern. Every hunch is statistically tested before you ever see it.
  • A pattern can still be wrong. A pattern here means two things moved together in your log. That can happen because something else changed at the same time, or because the flare days got logged more carefully, or just by luck. The check against chance leaves the weakest ones off the list. It cannot leave off all of them.
  • Look-alikes re-checked. A factor that usually tags along with another — the car ride on most dog-park days — is re-checked with its companion held fixed before it’s reported.
  • Ordinary statistics, on your phone. Not AI, not a server. The same with-vs-without comparison you just made in Chapter 3 — shifted a day or two only for the factors that earn it — run across the foods, products, pets, places, weather and baths you log, and the days each scheduled medication was taken or missed, then checked against chance.
  • You decide, not the app. You tell EczemaTrack what happened. It runs the same with-vs-without comparison on what you told it, and hands the result back for you and your child’s doctor to read. It never decides anything about your child.
  • What you see are screening-level leads to discuss with your child’s doctor — never a diagnosis, treatment, or prediction.

Good for appointments

Make a PDF report for your pediatrician or dermatologist — each day’s skin rating, the treatments and doses you marked, and reactions in your own words — or export everything as a CSV spreadsheet. You choose the period and whether your written notes go in. The patterns the app noticed stay out unless you switch them on.

If your child’s skin looks infected, is spreading quickly, or your child seems unwell, call your doctor or seek urgent care. Do not wait for a pattern.

Chapter 5 · The first case

Case #001: Enzo.

Jorge, founder of EczemaTrack
Enzo’s dad

I built EczemaTrack for my son, Enzo. We spent a long time guessing — changing creams, changing detergents, never sure what was actually helping. We bought a paper eczema journal and kept it faithfully. The logging worked; finding a pattern across pages by eye didn’t.

About a month into logging properly, the same thing kept turning up alongside his worst days: the dog. We took it to his doctor and asked about testing, and the blood test came back positive for dogs.

That’s the whole idea behind EczemaTrack. It can’t diagnose anything. What it did was hand us the one question worth asking a doctor.

— Jorge, founder of EczemaTrack

the first case is why all the others exist.

✓ Private by design✓ On-device✓ No ads, ever✓ Built for families

Chapter 6 · Notes for parents

Worth asking first.

Is my child's data really private?

Yes. Everything you log is stored only on your iPhone — there are no accounts and no servers, so we never receive or see your data. The one exception is the optional weather feature, which sends your approximate location to Apple's WeatherKit to fill in conditions; you can skip it and enter weather manually.

How long before the pattern analysis says anything?

It needs 30 logged days before it runs the analysis. It may then come back with nothing — that's it working, not failing: it won't call something a pattern unless the evidence clears it. Everything, the automatic insights included, is free right now.

Does it work offline?

Yes. Tracking, the body map, insights, and exports all work fully offline on your device. Only the optional weather lookup needs an internet connection.

How much does it cost?

Nothing, right now. Every feature is free for everyone, including the automatic pattern insights and the PDF/CSV export. A paid subscription is built into the app but switched off for now, and it may come back later. If you subscribed before, it won't renew and you won't be charged again; you can check it in Settings → your name → Subscriptions. If the app still asks you to subscribe, or says subscription options couldn't be loaded, update it to the latest version from the App Store; everything has been unlocked since version 1.0.12.

Is this medical advice?

No. EczemaTrack is an informational tracking tool, not a medical device. It surfaces statistical patterns from your own logs — leads to discuss with your child's doctor, not a diagnosis, treatment, or prediction. Always consult a healthcare provider before changing care, diet, or medication.

Can I share the history with our doctor?

Yes. From the More tab you can make a PDF report to bring to your pediatrician or dermatologist. You pick the period (since your last visit, the last 30 or 90 days, or everything) and whether your written notes go in; reactions you noted are always included. The patterns the app noticed are left out unless you switch them on. You can also export everything you've logged as a CSV spreadsheet. Like everything else in the app, it's free right now.

What do I need to run it?

An iPhone running iOS 17.2 or later. It's designed for a parent or guardian to track one child's eczema.

Your kid’s case won’t solve itself.

Open the file tonight. Two minutes a day builds the history; the app looks for what lines up — and what only shows up a day or two later.

Download on theApp StoreCase opened

Free right now — pattern insights and the PDF/CSV export included.